Surfacing-machine.



A. H. WHATLEY.

SURFAGING MACHINE.

APPLICATION FILED DEG. 23, 1907. 939,363, Patented Nov. 9, 1909 3 SHEETSSHEHT 1.

attozmy A. H. WHATLEY.

V snamcma MACHINE.

APPLICATION FILED D180. 23, 1 907,

' Patented Nov. 9, 1909.

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ALFRED H. WHATLEY, or PROVIDENCE, RHODE ISLAND, AssIeNon '10 UNITEDSTATES FLOOR SURFACING MACHINE COMPANY, or PROVIDENCE, anonn ISLAND, Acoa- PORATION 0F RHODE ISLAND.

SURFACING-MACHINE.

Specification of Letters Patent.

Patented Nov. 9, 1909.

Application filed December 23, 1907. Serial No. 407,753.

To all whom it may concern:

Be it known that I, ALFRED H. l/VHATL Y,

Providence and State of Rhode Island, have invented certain new anduseful Improvements in Surfacing-Machines, of which the following 18 aspecification, reference being had therein to the accompanying drawing.

This invention relates to floor surfacing machines and has for itsobject to provide a machine having one or more surfacing rolls, the endsof which extend out or overhang the body portion, whereby the machine isadapted to operate on the floor of a room close along the mop-board onthe sides.

Another feature of the invention is the means whereby both of the rollsmay be lowered or raised in unison, or either one of said rolls may beso operated independently of the other by the movement of a singleoperating hand wheel, to regulate the pressure on the surface beingdressed or to raise the rolls entirely clear therefrom.

Another feature of the invention is the simple and efi'ective meanswhereby the machine may be guided and nicely controlled by the movementof a single hand lever.

With these and other objects in view, the invention consists of certainnovel features of construction, as will be more fully described andparticularly pointed out in the appended claims.

In the accompanying drawings: Figure 1 is a side elevation of myimproved surfacing machine showing the general construction, a portionof the framework being broken away to better illustrate some of theparts. Fig. 2 is a plan view of the machine showing the surfacing rollsextending out beyond the side of the machine. Fig. 3 is a plan viewshowing the upper portion of the machine removed to better illustratethe driving mechanism. Fi 4 is a sectional view on line 4-4 of Fig. 3.Fig. 5-- is an enlarged plan view of the mechanism for raising andlowering the rolls. Fig. 6- is a sectional elevation on line 6-6 of Fig.5. Fig. 7 is a detail showing the front view of one of the slidingblocks slotted toreceive the crank pin for the purpose of raising andlowering the rolls.

Referring to the drawings at 1 is the baseor body of the machine whichis mounted on three wheels 2, 3 and 4 to be more readily moved about.The wheels 2 and 3 at one end of the body are mounted on the shaft 5which in turn is mounted on the bearings 6 and 7 depending from thebody. The forward Wheel 4 is mounted on the yoke 8 and adapted to swingor turn on the swivel pin 9 which passes up through suitable bearings 10in the frame 1. The surfacing rolls 11 and 12 are mounted on theirrespective shafts 13 and 14 in the bearings 15 and 16. These bearingsare supported on arms 17 and 18, which arms are pivotally mounted attheir opposite ends, said ends being pro vided with hubs which areadapted to engage and rock on the tubular supporting members 19 and 20,said members being supported from the frame 1 at either end in thedepending ears or brackets 21 and 22. Shafts 23 and 24 are adapted topass through and rotate in these tubular members, said shafts beingconnected together at one end through the gears 25 and 26 and theopposite ends of these shafts are connected to their respectivesurfacing rolls 11 and 12 through the drive chains 27 and 28 and theirrespective rol=l shafts 13 and 14. Motion is transmitted to these rollsfrom the motor 29 through the belt 30 to the pulley 31 fixed on the endof shaft 24.

In order to support the roll adjusting mechanism and the wastecollecting device I have provided a frame constructed of four posts32-32, one secured at each corner of the base or body portion and allconnected together near their upper ends by means of a railing 33.

A simple and effective means for guiding the machine has been providedwhich includes the steering handle 34 connected to the swivel wheel 4through the upright shaft 35, arm 36, connection 37 and arm 38, whichlatter arm is fixed to the head of the wheel yoke 8. This handle 34 isconnected to the handle 34 on the opposite side of the machine throughthe connecting rod 35 whereby the direction may be controlled fromeither end of the machine.

An essential feature of the invention is the means by which theoperating rolls are raised and lowered and by which the neces sarypressure is given to them while acting on the surface to be dressed. Toaccomplish this I have provided upwardly extending rods 39 and 40connected to the outer end of their respective swinging arms.

The upper end of each rod is passed through its slidable block 41 andhas a larger rod 47 attached to its upper end. One end of a small spring42 rests against the underside of the block, the opposite end of saidspring engaging the collar 43 fixed to the rod, while one end of alarger and heavier spring 44 rests against the upper side of the block,the opposite end of said spring engaging an adjustable screw collar 45which is adapted to be set into the desired position to regulate thetension of said springs. After said collar is set the same is locked bymeans of the upper looking or jam nut 46, and the pressure of the rollon the floor is the result of the difference be tween the pressure ofsaid two springs. The end of the rod 47 serves to limit the relativemovement of block 41 and its supporting rod. This block 41 is held toslide vertically in a bearing 48 which is supported on the rod 49 in theframe. Secured to the outer face of this hearing by means of the bolts50 is the ournal 51 which incloses the sleeve 52 on which the crank pin53 is mounted. This crank pin is adapted to enter the slot 54 in saidblock whereby when said sleeve is rotated the pin will work in said slotto raise and lower said block.

All of the=above-mentioned mechanism is duplicated on the opposite sideof the machine for operating the rod 39. These two mechanisms are joinedtogether by means of the shaft 55 which is journaled at either end inthe sleeves 5252. The clutches 56 and 57 have outwardly projecting lugsor teeth 58 from one face thereof adapted to enter corresponding slots59 in the ends of the sleeves Said clutches are mounted on feather-keysin said shaft 55 to slide endwise thereon and may be caused to connectone or both of said sleeves to the shaft which is adapted to be rotatedby means of the hand wheel 60 through the medium of the miter gears 61.

The operation of the machine may be more fully described as follows: Therolls on this machine project or extend beyond the side of the frame sothat the machine may work along close by the mop board around a room,which cannot be accomplished by other machines where the rolls areprovided with supporting bearings at both ends.

Another feature in the construction of my device is that the rolls aredriven by a positive orchain drive from a shaft at the point Where saidrolls are pivoted. In other words the raising and lowering of the rollsdoes not affect the tension of the driving belt.

lVhen it is desired to either raise or lower roll 11 without moving roll12, clutch 57 is withdrawn from connection with its sleeve .the unevensurface operated 52 leaving clutch 56 in mesh. The hand wheel 60 is thenrotated and the roll 11 raised or lowered into the desired position.lVhen it is desired to operate both rolls simultaneously both of theclutches 5(3 and 57 are caused to engage their respective sleeves.

The springs 42 and 44 lend to the rolls a certain amount of flexibilityand allow them to raise and lower slightly as they pass over upon andadjust themselves thereto.

The machine may be readily steered or guided in any direction by turningthe swivel roll 4 through the movement of either one of the hand levers34 and 34. By this construction the machine may be guided by theoperator from either end.

A feature in the construction of this machine is that two rolls areused, each being driven in opposite directions, whereby the frictionalresistance of both on the floor is balanced, to facilitate the guidingof the machine.

Hoods, not shown, have been provided for incasing the rolls which hoodsare coir nected together by pipes and to the blower (32, which draws thedirt and dust removed from the floor and deposits the same into thecloth bag (33 above, supported from the upper portion of the machine.

The upwardly extending frame forms a neat and convenient construction ofcarrying the controlling mechanism and brings the same within easy reachof the attendant. This frame also serves as a convenient means by whichthe machine may be pushed about the floor by the operator.

The construction of the machine practical and its operation efiicicnt.

Having thus described my invention. what I claim as new and desire tosecure by Letters Patent, is:

1. A floor surfacing machine comprising a base, a plurality of. powershafts mounted therein, a horizontal frame pivotally mounted at. oneside to each shaft, each frame being provided at the opposite side witha bearing sleeve parallel with said shafts, surfacing rolls each havinga shaft; mounted in one of said bearing sleeves, and rods engaging thefree end of each frame and means for raising or lowering said rodsindependently or in unison.

2. A floor surfacing machine comprising a base, a plurality of powershafts mounted therein,a horizontal frame foreach shaft having one sidepivotally mounted upon the shaft and provided at its opposite side witha sleeve parallel with said shaft, a shaft mounted in each sleeve, asurfacing roll at one end of each shaft, power mechanism comwcting theother end of each surfacing roll shaft with its power shaft, and rodsengaging the free end of each frame and means for raising and loweringsaid rods independently or in uni son.

3. A floor surfacing machine comprising a frame, a rotatable surfacingroll mounted therein, a slidable block, means for guiding the same,meansfor raisin and lowering said r block, a rod passedthroug said block andsuspended from the latter, said rod being connected to said frame, andmeans for permitting a limited relative movement between said rod andsaid block.

4. A floor surfacing machine comprising a frame, a rotatable surfacingroll mounted therein, a slidable block, means for guiding the same, arotatable shaft for raising and lowering said block, a rod passedthrough said block and suspended from the latter, said rod beingconnected to said frame, and means for permitting a limited movementbetween the rod and said block.

5. A floor surfacing machine comprising a frame, a rotatable surfacingroll mounted therein, a slidable block, means for guiding the same,means for raising and lowering said block, a rod passed through saidblock and suspended from the latter, said rod being connected to saidframe and free to move relatively to said block, and springs carried bysaid rod and arranged to engage opposite ends of said block.

6. A floor surfacing machine comprising a frame, a rotatable surfacingroll mounted therein, a slidable block, means for guiding the same, arotatable shaft for raising and lowering said block, a rod passedthrough said block and suspended from the latter, said rod beingconnected to said frame and free to move relatively to said block, andsprings carriedby said rod and arranged to engage opposite ends of saidblock.

7. A floor surfacing machine comprising a frame, a rotatable surfacingroll mounted therein, a slidable block connected to said roll andprovided with a slot means for guiding saidblock, a rotatable shaft, anda crank pin carried by said shaft arranged parallel with the axis of thelatterand engaging said slot.

8. A floor surfacing machine comprising a frame, a rotatable surfacingroll mounted therein, a slidable block connected to said roll, means forguiding the same, a crank member normally in engagement with said block,an operating shaft normally disengaged from said crank member, and meansfor operatively connecting said crank member and said shaft.

9. A floor surfacing machine comprising a frame, a plurality ofrotatable surfacing rolls mounted therein, a slidable block connectedwith each roll, and means for raising and lowering said blockssimultaneously or independently.

10. A floor surfacing machine comprising a frame, a plurality ofrotatable surfacing rolls mounted therein, a slidable block c0nnectedwith each roll, a rotatable shaft, and means operated by said shaft forsliding said blocks simultaneously or independently.

11. A floor surfacing machine comprising a frame, a plurality ofrotatable surfacing rolls mounted therein, a slidable block connectedwith each roll andprovided with a slot, a rotatable shaft, crank memberscarried by said shaft and engaging said blocks, and means for operatingsaid crank members simultaneously or independently.

12. In a floor surfacing machine, the combination of a base, a swingingarm pivotally supported in said base, a surfacing roll rotatablysupported in said arm, an operating rod connected to said arm, aslidable block on said rod, springs connecting said block to said rod,and means for moving said block up and down to raise and lower saidroll.

13. A floor surfacing machine comprising a base, a drive shaft mountedtherein, abearing sleeve pivotally supported by said shaft and parallelwith said drive shaft, a roll shaft mounted in said sleeve, a surfacingroll mounted on one end of said roll shaft and projected to one side ofsaid base, a slidable block, a rod connecting said block and saidsleeve, means for limiting the relative movement of said rod and block,and means for raising and lowering said block.

14:. In a floor surfacing machine, the combination of a base, a swingingarm pivotally supported in said base, a surfacing roll rotatablysupported in said arm, an operating rod connected to said arm, aslidable block on said rod and constructed to have a limited movementrelative to the latter, springs connecting said block to said rod, arotatable member for moving said block up and down to raise and lowersaid roll, and a clutch for controlling said rotatable member.

15. A floor surfacing machine comprising a frame, a plurality ofsurfacing rolls mounted therein, rods connected to said rolls, meansconnected to said rods for exerting a yielding pressure upon said rolls,and means connected to said rods for raising and lowering said rollsindependently or simultaneously.

16. A floor surfacing machine comprising a frame, a plurality ofparallel shafts mounted therein, a surfacing roll on one end of eachshaft, rods connected to said shafts, means connected to said rods forexerting a yielding pressure upon said rolls, and means connected tosaid rods for raising and lowering said rolls independently orsimultaneously.

17. In a floor surfacing machine, the combination of two swinging armspivotally supported therein, a surfacing roll supported in each arm, anoperating rod connected to each arm, a slidable block loosely mounted oneach of said rods, springs supporting each of said blocks on the rods,means for moving each block up and down to raise and lower the roll,means for guiding said block, means for limiting the relative movementof said block and its rod, and means for connecting and disconnectingthe block from said moving means.

18. In a floor surfacing machine, the combination of a swinging armsupported therein, a surfacing roll mounted in said arm, an operatingrod connected to said arm, a slidahle block, springs of differentstrength above and below said block and acting thereupon to prevent theroll from bounding while operating on an uneven surface, means forregulating the tension of said springs, and means for raising andlowering said roll independent of said pressure adjusting means.

In testimony whereof I afiix my signature in presence of two witnesses.

ALFRED H. Wl-l A'ILEY. Vitnesses HOWARD E. BAnLow,

E. I. OGDEN.

